Designer do not show property KColorCombo::colors

Reproducted:
1 Open qt4 designer
2 create simple widget
3 drop KColorCombo to widget
Property 'colors' do not show in property list

Output in console:
$ designer
Bus::open: Can not get ibus-daemon's address.
IBusInputContext::createInputContext: no connection to ibus-daemon
Error while reparenting!
QMetaProperty::read: Unable to handle unregistered datatype 'QList<QColor>' for property 'KColorCombo::colors'
makekdewidgets(29702)/nepomuk (library): Could not find virtuoso to connect to. Aborting
QMetaProperty::read: Unable to handle unregistered datatype 'SelectionBehavior' for property 'QTabBar::selectionBehaviorOnRemove'
QMetaProperty::read: Unable to handle unregistered datatype 'KUrl' for property 'KUrlRequester::url'
QMetaProperty::read: Unable to handle unregistered datatype 'QList<QChar>' for property 'KCharSelect::displayedChars'
QMetaProperty::read: Unable to handle unregistered datatype 'KUrl' for property 'KUrlRequester::url'
Hspell: can't open /usr/share/hspell/hebrew.wgz.sizes.
X Error: BadWindow (invalid Window parameter) 3
  Major opcode: 20 (X_GetProperty)
  Resource id: 0x8c00071
QMetaProperty::read: Unable to handle unregistered datatype 'QList<QColor>' for property 'KColorCombo::colors'
The property "colors" of type 0 (invalid) is not supported yet!

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: kdelibs5-plugins 4:4.13.2a-0ubuntu0.2
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
NonfreeKernelModules: fglrx wl
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: KDE
Date: Wed Jul 23 11:32:23 2014
InstallationDate: Installed on 2011-12-10 (955 days ago)
InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
SourcePackage: kde4libs
UpgradeStatus: Upgraded to trusty on 2014-04-23 (91 days ago)